-11.39% is the change from 729 to 646
Calculation steps:
[( 646 - 729 ) ÷ 729] x 100 = -11.39%
Formula
Percentage change = [(646 - 729) / 729] x 100
Subtract the new number by the original number
646 - 729 = -83
-83 ÷ 729 = -0.11385459533607682
-0.11385459533607682 x 100 = -11.39%